Huid en proeven

• Biologie / Verzorging
• Middelbare school
• mavo, havo
• Leerjaar 1

Welcome!

Discussing homework

Explanation about skin and taste (paragraph 5.2, page. 94)

Making exercises 5.2

There are only five senses

1. True
2. False

What senses are there?

Sensory cells transfer ... to impulses.

Where are the impulses from the sensory cells sent to?

1. Arms
2. Brain
3. Digestive system
4. Nerves

What are we going to study today?

We will study:

What the skin consists of.

What senses are in the skin.

What the function of the skin is.

How you taste.

The skin

The skin has 3 main layers:

Epidermis: 

Partly dead cells (corneal layer) that get refilled from the basal layer. 

Dermis: 

This is the layer where all the senses and other important parts are. 

Subcutaneous connective tissue:

Here, fat is stored which keeps you warm and protects your body. 

Tasting

The sensory organ for taste is your tongue. Taste buds are located on here, which consist of taste receptors. There are 5 different taste receptors: sweet, sour, savory, bitter and umami.

You not only taste with your tongue, but also with your nose!

Olfactory system

Homework for next lesson

For next lesson, you need to have finished the exercises of paragraph 5.2, including the summary and plusexercise. You can work on them now.